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Semtech Corporation TCLAMP3302N.TCT
- Part No.:
- TCLAMP3302N.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
TCLAMP3302N.TCT.pdf
- Description:
- TVS DIODE 3.3VWM 25VC SLP2626P10
- Quantity:
- Payment:
- Shipping:
Inventory:11,286
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Product details
Overview
TCLAMP3302N.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 3.3V I/O or power lines in USB, industrial, and IoT interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 5.8V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a 1.6mm × 1.6mm DFN-6 package.
For engineers reviewing the TCLAMP3302N.TCT datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, thermal stability data, PCB layout guidance, and direct alternative part comparisons for USB Type-C, load switch input, and industrial bus protection designs.
Technical Context
The TCLAMP3302N.TCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 0–24A peak pulse current due to decreasing RDS(on) under surge conditions.
It features 175pF junction capacitance at 3.3V reverse bias, 130nA max reverse leakage at VRWM, and stable clamping performance over –40°C to +125°C - critical for USB PD and industrial equipment operating in thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 3.3V - matches standard I/O rail voltage for USB SS, DP/DM, and low-voltage logic interfaces. |
| Clamping Voltage | 5.8V at IPP = 24A - stays below 6V threshold to protect 5V-tolerant USB controllers and PHYs without overstressing gate oxides. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds Level 4 requirements for consumer and industrial end-equipment certification. |
| Dynamic Resistance | 20mΩ - enables low-voltage overshoot during fast transients and minimizes power dissipation in the device. |
| Junction Capacitance | 175pF at VR = 3.3V, 1MHz - compatible with USB 2.0 and sideband use cases; not suitable for >480Mbps superspeed lanes without additional low-C protection. |
| Peak Pulse Current | 24A (tp = 8/20μs) - meets IEC 61000-4-5 Level 3 surge immunity for industrial ports and USB PD input stages. |
| Operating Temperature | –40°C to +125°C - supports extended-temperature deployment in automotive-adjacent, factory automation, and outdoor IoT nodes. |
Pinout & Package
Package: DFN-6, 1.6mm × 1.6mm × 0.55mm, RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Exposed thermal pad not required - energy dissipated via FET conduction, not junction heating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for all surge current paths; must be connected with low-inductance routing and multiple vias to internal ground plane. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., VBUS, CC, or DP/DM); all three pins must be used to achieve rated 24A surge capability. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.2V across 1–24A surge range - eliminates need for derating at elevated temperatures or high-current events. |
| FET-based shunt topology | Replaces pn-junction TVS with active switching; avoids thermal runaway and enables repeatable protection after multiple surges. |
| Low dynamic resistance | 20mΩ ensures minimal IR drop during surge - keeps protected IC's input voltage within safe margin even at 24A peak. |
| High-temperature stability | Clamping voltage drift <1% from –40°C to +125°C - guarantees consistent protection in uncontrolled ambient environments. |
| Space-optimized footprint | 1.6mm × 1.6mm DFN-6 saves >60% board area vs. legacy SO-8 TVS solutions - critical for compact USB Type-C connectors and wearable modules. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB PD 3.0 systems where nominal voltage reaches 20V and transient spikes exceed 30V. IC Role / Device Role / Timing Role: Primary EOS suppressor placed directly at connector, clamping surges before they reach PD controller or buck converter input. Use Value: Maintains 5.8V clamping at full 24A surge - prevents latch-up or gate oxide damage in 5V-tolerant PD controllers like TUSB73x or STUSB4500. |
Use Scenario: Securing input rails of industrial-grade load switches (e.g., TPS229xx, AP22653) exposed to lightning-induced surges in remote metering or robotics. IC Role / Device Role / Timing Role: Front-end transient shunt that limits voltage seen by the load switch's internal FET drain, avoiding avalanche failure or SOA violation. Use Value: 20mΩ RDYN ensures <120mV IR drop at 6A continuous - preserves input regulation while handling 24A short-duration transients. |
| IoT Sensor Node Power Rail Protection | USB 2.0 Data Line Surge Suppression |
Use Scenario: Safeguarding 3.3V supply inputs of battery-powered edge sensors (e.g., environmental monitors, smart agriculture nodes) deployed outdoors or near EMI sources. IC Role / Device Role / Timing Role: Standalone rail clamp on main PMIC input, coordinated with upstream fuse and downstream LDO for fault containment. Use Value: –40°C to +125°C operation and ±30kV ESD rating ensure reliability in unheated enclosures or solar-powered field deployments. |
Use Scenario: Adding robustness to USB 2.0 D+ and D– lines in host controllers or peripheral hubs subject to frequent hot-plug ESD events. IC Role / Device Role / Timing Role: Low-capacitance parallel clamp (175pF) placed adjacent to connector, minimizing signal integrity impact on 480Mbps traffic. Use Value: 5.8V clamping protects 3.3V I/O cells without requiring series impedance matching - simplifies layout vs. RC-filtered TVS approaches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RClamp3371ZC.TCT | 0.25pF capacitance, 5.5V clamping at 1A, rated for 3A IPP - optimized for USB SS/DP/DM lanes, not power rails. | Targeted at high-speed differential pairs; insufficient for VBUS or CC line surge handling. | Select TCLAMP3302N.TCT for power-line or single-ended I/O protection; use RClamp3371ZC.TCT only for superspeed data lanes. |
| uClamp2411ZA.TCT | 24V working voltage, 36V clamping, 12A IPP - designed for higher-voltage CC/SBU lines in USB Type-C. | Intended for auxiliary channel protection where 24V tolerance is required; over-specified and higher clamping for 3.3V rails. | Choose uClamp2411ZA.TCT only when protecting CC lines referenced to VBUS; TCLAMP3302N.TCT is optimal for 3.3V logic and VBUS input stages. |
Compared with RClamp3371ZC.TCT and uClamp2411ZA.TCT, TCLAMP3302N.TCT uniquely balances 3.3V system compatibility, 24A surge capacity, and thermal-stable clamping - making it the only Semtech TDS rated specifically for 3.3V bus protection with industrial-grade robustness.
Availability
TCLAMP3302N.TCT is available at Aetrix Electronics and suitable for USB Type-C PD interface design, industrial load switch input hardening, and IoT sensor node power rail protection requiring stable component supply across production lifecycles.
Supply support for TCLAMP3302N.TCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and connectivity.
The TCLAMP3302N.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace traditional TVS diodes with FET-based active clamping for superior thermal stability and current-handling in space-constrained, high-reliability applications.
FAQ
What is the maximum clamping voltage of TCLAMP3302N.TCT at 24A surge current?
The TCLAMP3302N.TCT clamps at 5.8V when subjected to a 24A peak pulse current (tp = 8/20μs). This value is guaranteed across –40°C to +125°C and remains stable due to its FET-based shunt architecture - unlike conventional TVS devices whose clamping rises linearly with current and temperature. The 5.8V clamping ensures compatibility with 3.3V/5V logic interfaces without exceeding safe input thresholds.
Can TCLAMP3302N.TCT be used on USB SuperSpeed (SS) differential pairs?
No, TCLAMP3302N.TCT is not recommended for USB SuperSpeed (5Gbps/10Gbps) differential lanes. Its 175pF junction capacitance introduces excessive signal loading and insertion loss on high-speed lines. For SS TX/RX or DP/DM lanes, Semtech specifies ultra-low-capacitance devices like RClamp3371ZC.TCT (0.25pF). TCLAMP3302N.TCT is intended for single-ended 3.3V rails such as VBUS input, CC, or SBU lines where bandwidth constraints are less stringent.
Does TCLAMP3302N.TCT require a thermal pad on the PCB?
No, TCLAMP3302N.TCT does not require an exposed thermal pad. Unlike traditional TVS diodes that dissipate surge energy in the silicon junction, TCLAMP3302N.TCT uses a low-RDS(on) FET to conduct transient current to ground - resulting in minimal localized heating. The DFN-6 package relies on copper pour and ground vias for current return, not thermal conduction. Layout guidelines emphasize low-inductance GND connections (pins 1–3) and parallel IN routing (pins 4–6), not thermal relief.
How does TCLAMP3302N.TCT differ from standard TVS diodes in surge response?
TCLAMP3302N.TCT uses a precision-triggered FET shunt instead of a passive pn-junction. When a transient exceeds the trigger threshold, the FET turns on with sub-10ns latency and RDS(on) dropping to ~20mΩ - yielding flat clamping voltage across 1–24A. Standard TVS diodes exhibit rising clamping (VC = VBR + IPP × RDYN) and degrade with temperature. TCLAMP3302N.TCT's clamping stays within ±0.2V from –40°C to +125°C, enabling predictable protection in thermally variable environments.
Is TCLAMP3302N.TCT compliant with RoHS and halogen-free standards?
Yes, TCLAMP3302N.TCT is fully RoHS-compliant and halogen-free, meeting both EU RoHS Directive 2011/65/EU and WEEE requirements. Its molding compound carries UL 94V-0 flammability rating, and the lead finish is lead-free. These compliance attributes are confirmed in Semtech's official datasheet Rev 2.5 and supported by material declarations available through authorized distributors including Digi-Key and Mouser.
TCLAMP3302N.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-UFDFN Exposed Pad
- Series:
- TransClamp™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 95A (8/20µs)
- Power - Peak Pulse:
- 2500W (2.5kW)
- Power Line Protection:
- Yes
- Applications:
- Ethernet, Telecom
- Capacitance @ Frequency:
- 25pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2626P10 (2.6x2.6)
TCLAMP3302N.TCT FAQ
1.How can I place an order for TCLAMP3302N.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCLAMP3302N.TCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TCLAMP3302N.TCT reliable?
The price and inventory of TCLAMP3302N.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCLAMP3302N.TCT is usually 5 days.
3.What payment methods are accepted for TCLAMP3302N.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCLAMP3302N.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCLAMP3302N.TCT?
TCLAMP3302N.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCLAMP3302N.TCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TCLAMP3302N.TCT?
For technical support, including TCLAMP3302N.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCLAMP3302N.TCT requirements.
6.How does Aetrix verify that TCLAMP3302N.TCT is sourced from the original manufacturer or authorized distributors?
All TCLAMP3302N.TCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TCLAMP3302N.TCT meets industry standards.
7.What is the process for return or replacement of TCLAMP3302N.TCT?
All TCLAMP3302N.TCT units undergo pre-shipment inspection (PSI). If there is an issue with TCLAMP3302N.TCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TCLAMP3302N.TCT part is unused and in its original packaging.
Return procedure for TCLAMP3302N.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TCLAMP3302N.TCT Tags
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